Wednesday, January 30, 2013

Gemstone of the Week: Dioptase

Dioptase image found on

Dioptase is such a gorgeous gemstone! Discovered in 1797 by René Just Haüy, it was named from the Greek words dia meaning "through" and optos meaning "to see."  alluding to the visibility of its internal cleavage planes. Dioptase is a hardness 5 with a vitreous luster and may be transparent or translucent.  In colour, it may be emerald green, blue-green, or turquoise. Dioptase may be found in: Angola, Australia, Argentina, Chile, Czech Republic, Democratic Republic of Congo(Zaire), France, Germany, Iran, Italy, Kazakhstan, Mexico, Morocco, Namibia, New Zealand, Peru, Republic of Congo (Brazzaville), Romania, South Africa, and the states of Arizona, California, Michigan, Nevada, New Jersey, New Mexico, and Pennsylvania.

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